LXR uboot/cmd/timer.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2001
   4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5 */
   6
   7#include <common.h>
   8#include <command.h>
   9
  10static int do_timer(struct cmd_tbl *cmdtp, int flag, int argc,
  11                    char *const argv[])
  12{
  13        static ulong start;
  14
  15        if (argc != 2)
  16                return CMD_RET_USAGE;
  17
  18        if (!strcmp(argv[1], "start"))
  19                start = get_timer(0);
  20
  21        if (!strcmp(argv[1], "get")) {
  22                ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
  23                printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
  24        }
  25
  26        return 0;
  27}
  28
  29U_BOOT_CMD(
  30        timer,    2,    1,     do_timer,
  31        "access the system timer",
  32        "start - Reset the timer reference.\n"
  33        "timer get   - Print the time since 'start'."
  34);
  35